Calibrating mechanism for positive stops for visible pumps



Ma rch 4, 1930. w. H. MARSH CALIBRATING MECHANISM FOR POSITIVE STOPS FOR VISIBLE PUMPS Filed Nov. 29. 1927 ZSheets-Sheet 1 Ma'rch 4, 1 930. W.' H. MARSH GALIBRATING MEcHAkIsM FOR PoITIvn STOPS FOR VISIBLE PUMPS 2 Sheets-Sheet 2 Filed Nov. 29, 1927 INLENTOR WWW m4 I I PatentedcMar. 4, 1930 U IT D STATE PATENT OFFICE warmers.noiurouilrAnsmor ASPINWAZLL, PENNSYLVANIA, ASSIGNOR 'rornniusYL- vANIA PUMPOOMPANY, A CORPORATION or PENNSYLVANIA JVCALIBRA'IIIQ'GV MECHANISM FOR rosirivn s'rorsron VISIBLE PUMPS.

Application filed November 29 1927. -ScriaI Nope-36,443.

I This inv'ention relates to dispensing 'de vices and more particularly to dispensing pumps such, for example, as those employed atgasollne filling stations i An object of" this invention is toiprovide an'improved device of the type set forth having a controlmechanism constructed and arranged jto permit quiclrand accurate adjustment thereof so as'ato. insure the correct measuringof the fluiddelivered by the pump. further vohject isto provide a gasoline pump having annimproved form of liquid delivery Inechanismwhich willloe simple in I construction, effective in operation and cheap 115 to manufacture and .1 assemble.

. These 7 and other objects which will be ap- I 5 parentto those skilled in this particularart 7 are accomplished loy means of the invention llustrated in the accompanying drawings wherein Figure 1 is afront elevation of cer ftain' details .constructedin accordance with one embodiment oflthis invention Fig; 2 fjis'a transverse sectional vView on the line 2- 2 *ofFig'. 1.: Figs, 3 and 4: illustrate certain Q details of construction Fig.5 is a view on the line 5+5 of 2 and Fig (iisl a side elevationof a portion ofa gasoline dispensing' pumpiequipped with one form of this invention.

- The particular embodinic ntiof this inven I; tion which hasbeen chosen forthe purposes of illustration is shown in connection w'itha gasolinesdispensingl pump which, .as .illustrated, is provided-with a liquid container for holding a predetermined quantity of'liq uid. Delivery 'Inechanism for dispensing the liquid from said container is associated therewithandin the present form includes avertically movable discharge tube adapted to dispense different: quantities of fluid from.

Q the container bybeingpositioned-atdiiferent heights therein. Means for raising and lowering the tube todifierent discharge positions is provided and mechianisinlfor insuring that Qtheoutlet will be accurately positionedat a predetermined levelso that the exact amount I ofv liquid desired will be drawn off, is, associatediwiththe positioning means. 7 The cali- V 'brating mechanism is of such construction 'thatyeach position of the outletican be -defi nitely set without affecting the settings for the other positions thereof.

As. illustrated, the dispensing apparatus isprovided with a container 10 adapted to cally movable fluid delivery tube 11, the upper open end of which constitutes an outlet orifice through which the liquid in the container flows tothel'discharge line It will be apparent that positioning of the discharge tube at diiierent levels in the container will cause difierent quantities of liquid to be dispensed therefrom, the'quanti-ty dispenseddepending upon the height at which the outlet is positioned within the container. Means for raising and lowering the discharge tube includes a tube supporting shaft 13 having a rack 14' formed thereon and engaging a pinion 15 secured to ai-otatable shaft 16 having a graduated disc or plate 17 secured to one end thereof. An op erating lever or crank 18 is associated with the shaft 16 for operating the same so as to cause the delivery tube to be raisedand 10wered within the container.

Mechanism is providedv for insuring the proper positioning of the delivery tube'witlr in :the container to deliver a'predetermined amount of liquid, As illustrated, thisrmechanism includes aadisc 19 provided with a plurality of spaced, radiallyextending slots '20 within which are mounted stop bloclis'Ql and is provided. with an inwardly projecting end 27 supporting a detent 28 having a beveled head 29 for cooperating with the slots 23 of the locking blocks for accurately posi tioning the delivery, tube. A spring 30 normally presses the crank 18 and bolt 28 into position to engage such blocks.

It will be readily understood that, supposing the mechanism tobe calibrated so as to deliver the fluidin gallons, each position of thehandlegl8. tordelivering one or more gallons will'be determined by one of the adjustable' stop blocks 21. Each of these blocks can be independently adjusted so that when the bolt or tin head 29 seats within the slot 21 a definite numberoii gallons will be delivered. If any one position becomes incorrect, such inaccuracy can be immediately and quickly corrected merely by shiftingthat particular block radially in one direction or the other.

level of the liquid delivery mechanism, and

"overcoming the inaccuracy. The proper jpo-. sition for each different measurement can be accurately adjusted without aifecting in any way the positionsfor different measurements. 1 In view of the fact that the initial movement of the head 290i the .detent as it leaves theslot is an upward movementabout thehandle supporting pivot asa center. it

- will be apparent that the, sides of the slot,

and especially that side away from the pivot,

mustbe inclined or beveled to. permit/the detentcto .be withdrawn therefrom. and positioned therein, without causing any move ment of the disc 17;

, Although I have described a specific conpended claims. What I claim as new and desire struction in more or less detail, it will be {apparent that various changes, additions,

omissions and substitutions can be made therein without departing from the spirit of this invention or'the scope. of the apby LettersPatent is: V 1 1; The combination with a container adapted to hold a quantity of fluid, ofa fluid delivery, mechanism including axvertically movable outlet tube, operating. meansvfor I raising and loweringsaid. tube to different levels in said container so as to deliver different predetermined. quantities of fluid, a movable detent associated with said 'operatingmeans and independently'radially ads justable stops co-operating with said detent for accurately gauging the movement'ofsa'id positioning means so as tocausesaid tube tobe set in position to'deliver' aipredetermined quantity of fluid. V

2. The combination with; a container adapted to hold a quantity of fluid, of. a fluid delivery mechanism including a vertically movable outlet'tube, arotatable shaft adapt-r jedto raise and lower said. tube to .diiierent This movement .will cause i the 1 cam slot'23, to shift the position iof the bolt 28 when it seats therein, thus changing the to secure I levels in said containerso as to deliver different predetermined quantities of fluid and dially adjustable for gauging the movement of said shaft for accurately setting'the de livery positions of said tube.

8. The combinationwith container a plurality of independent stops being ra-- adapted to hold a quantity of fluid of a delivery mechanism movableto different p o,

sitions within said container for the purpose of delivering'difierent quantities of fluid therefrom, means-, for moving said mechanism including a rotatable shaft, a crank associated with said shaft and provided With-a detent, a disc provided with a plurality of radiallyladjustable stops: po-

sitioned in the path of saidtdetent, eachof said stops having a slot extending diagonally to the, radius for oo-operating withQsaid de-J' 3,

tentso as to cause said delivery. mechanism to be definitely set in position to insure the accurate delivery of a predeterminedamount of fluid and means for independentlyadjuste ing'v each ofsaid stops.

H4. The combination. with ai container adapted to hold a quantity'of fluid, of a fluid deliverymechanism, including;a-verticallymovable outlet tubeoand means s for raising and loweringsaid tube in'said container so 2. 5 7

as tov cause'the delivery of diflerent-prede termined quantities of fluid,' a handle for raisingand lowering said tube and provided with' a spring detent, and, means provided With abeveled slot cooperating with saiddetent to hold said handle in position. I

' 5. In combination with arfluid container, a fluid delivery mechanismincludmg a ver-;

tically movableoutlet tube. and a means for f raising and lowering said tube in said container, a disk provided with radially adjust- I able blocks, said blocks havingslots extending diagonally to the radius and means for Y i shifting the position of said blocks and said 4 disk. 7 s, v 6. Invcombination with a fluid container, a fluid delivery mechanism including -.a vertically movable outlet .tube,:means for rais 3 ing and lowering said tube in-said container, 7

means for holding said tubefin a given po- Sition including a disk provided with spaced 7 ating said; pinion, a crank associated 'with said shaft/and. provided with 'aildetent, a V dischaving annular flanges, La plurality-of independent stopblocks .f-astenedrto said between said flanges adapted to cooperate with said detent for accurately gauging the movement of said shaft so as to cause said tube to'be set in position to deliver a predetermined quantity of fluid and means extending through said flanges for radially adjusting'said stop blocks. 7 In testimony whereof, I have hereunto subscribed my name this 15thday of November, 1927. J VALTER HORTON MARSH; 

